2311628 - Intermittent NullPointerException on hmc

Server intermittently throws NullPointerException when user tries access to the HMC http://localhost:9001/hmc/hybris
It happens from time to time during navigating to the login page, log out operation or reloading HMC page.

Jun 25, 2015 1:31:38 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [hmc] in context with path [/hmc] threw exception [Error while processing internal filterchain. Exception occurred at chain position: 4 of 8. Current filter: 'de.hybris.platform.servicelayer.web.SessionFilter@52bd3ac'!; nested exception is java.lang.NullPointerException] with root cause
java.lang.NullPointerException
at org.apache.catalina.connector.Request.getServletContext(Request.java:1648)
at de.hybris.platform.core.Registry.getWebApplicationContextIfExists(Registry.java:969)
at de.hybris.platform.core.Registry.getApplicationContext(Registry.java:952)
at de.hybris.platform.jalo.JaloSession.createViaSpringIfBeanExists(JaloSession.java:268)
at de.hybris.platform.jalo.JaloSession.createInstance(JaloSession.java:239)
at de.hybris.platform.jalo.JaloConnection.createSession(JaloConnection.java:754)
at de.hybris.platform.jalo.JaloConnection.createAnonymousCustomerSession(JaloConnection.java:666)
at de.hybris.platform.jalo.JaloConnection.createAnonymousCustomerSession(JaloConnection.java:648)
at de.hybris.platform.servicelayer.session.impl.DefaultSessionService.createNewSession(DefaultSessionService.java:76)
at de.hybris.platform.servicelayer.web.SessionFilter.createNewJaloSession(SessionFilter.java:128)
at de.hybris.platform.servicelayer.web.SessionFilter.activateSession(SessionFilter.java:115)
at de.hybris.platform.servicelayer.web.SessionFilter.doFilter(SessionFilter.java:71)
at de.hybris.platform.servicelayer.web.AbstractPlatformFilterChain$InternalFilterChain.doFilter(AbstractPlatformFilterChain.java:226)
at de.hybris.platform.servicelayer.web.RedirectWhenSystemIsNotInitializedFilter.doFilter(RedirectWhenSystemIsNotInitializedFilter.java:104)
at de.hybris.platform.servicelayer.web.AbstractPlatformFilterChain$InternalFilterChain.doFilter(AbstractPlatformFilterChain.java:226)
at de.hybris.platform.servicelayer.web.DynamicTenantSwitchingFilter.doFilterInternal(DynamicTenantSwitchingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at de.hybris.platform.servicelayer.web.AbstractPlatformFilterChain$InternalFilterChain.doFilter(AbstractPlatformFilterChain.java:226)
at de.hybris.platform.servicelayer.web.Log4JFilter.doFilter(Log4JFilter.java:47)
at de.hybris.platform.servicelayer.web.AbstractPlatformFilterChain$InternalFilterChain.doFilter(AbstractPlatformFilterChain.java:226)
at de.hybris.platform.servicelayer.web.AbstractPlatformFilterChain.doFilterInternal(AbstractPlatformFilterChain.java:156)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at de.hybris.platform.servicelayer.web.XSSFilter.doFilter(XSSFilter.java:230)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1074)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)

NullPointerException;HMC;intermittent;RequestContextHolder;ServletRequestAttributes , KBA , CEC-COM-CPS-CKP , Cockpits & hMC , CEC-COM-CPS , SAP Commerce , Problem